The illustration, which Snyder posted on Twitter, shows a gun-toting Lex Luthor facing off against Martian Manhunter, a highly-anticipated confrontation for fans of the current run. According to the synopsis for #17, Martian Manhunter has decided to pursue peace with the Legion of Doom leader. However, Snyder's latest panel casts some doubt on the success of the pair's potential union.
Alongside the image, Snyder wrote, "From JUSTICE LEAGUE #17 - out WED. Showdown on Mars. Every panel of this - I love what [Jim Cheung, Mark Morales and Tomeu Morey] have done."
Snyder is building his way up to Justice League #19, which will be a major turning point for the titular team. The issue will serve as the launch of a six-part story arc set in the Sixth Dimension. That story will see some of DC's biggest heroes encountering older versions of themselves and having a showdown that will determine the fate of the Multiverse.
Justice League #17, written by Scott Snyder, illustrated by Mark Morales, Jim Cheung and Tomeu Morey, and featuring a variant cover by Will Conrad, will be on sale Feb. 6.